FÖRBÄTTRAD MONTERING OCH DESIGNAV BAGAGELUCKA
This thesis includes a mechanical engineering design work performed incollaboration between ÅF and Halmstad University. The work is done by FredyOlsson?s methods of Principle- and Primary Construction and David Ullman?stheories of Design for Assembly.The group was commissioned by ÅF to produce a concept to narrow down theassembly time of today?s luggage doors by reducing the numbers of adjustmentoptions. They also wanted it to be easier to mount the assembly by making itpossible to adjust the door in a closed position. Today luggage door takes, with its10 adjustment possibilities, around 4 hours each to assemble and ÅF wanted anassembly time around 10 minutes per door.Initially a preliminary study was made where the group began reviewing today'sconstruction and mounting of rails and doors on buses. The current flow of thetailgate opening is still preferable. A further aspect the group included was thatthe assembly would also be more ergonomic for the assembler.Three concepts were developed based on the set criteria. The concept of aframework that aligns with the luggage opening was the best option. To developthe best construction of the framework and associated components, the group usedevaluation templates and FEM analysis to conclude that the construction wasreasonably rigid.The result of the project was to attach a frame holder against today's constructionof rails. A frame is attached on to the frame holders and then a click door isplaced. The frame holders have three hooks that attaches into the framework.After adjustment towards the boot lid opening the click door is attached on theoutside of the frame. The frame can now be adjusted in a closed position. Thissolution results that the number of adjustment options remains as before but itmakes mounting flow more easily. The ergonomic work for the installer is easieras well as installation time is greatly reduced.